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Finding the Third Proportional to 119,055 and 161,688

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Solution

The third proportional to 119,055 and 161,688 is: 219,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,055 : 161,688 = 161,688 : x
  2. Step 2: Convert to fraction form
    119,055/161,688 = 161,688/x
  3. Step 3: Cross multiply
    119,055x = 161,688 × 161,688
  4. Step 4: Simplify right side
    119,055x = 26,143,009,344
  5. Step 5: Solve for x
    x = 26,143,009,344/119,055
  6. Step 6: Final answer
    x = 219,587.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.